3a + 2b = 17, b = 4a - 30

Answers

Answer 1
Hope it helps !!!!!!
3a + 2b = 17, B = 4a - 30

Related Questions

Find the coordinates of the point
7
10 of the way from A to B.
-6
-4
-2
2
4
6
8
10
12
14
-10
-8
-6
-4
-2
2
4
6
8
10
x
y
A(−4,−8)B(12,7)

Answers

Answer:

The answer is

B. 6, 8, 11, 1, 7, 14, 10

C. 14, 10, 6, 9, 11, 8, 1

Step-by-step explanation:

Evaluate the following expresslon: -2|9|.
18
-11
-18
11

Answers

Answer:

-18

Step-by-step explanation:

The absolute value is only on the 9, and the absolute value of positive 9 is positive 9. Multiply by negative 2 and you get -18.

Which of the following numbers has the greatest value?
.1

.47

.049

.192

.0864

Answers

Answer:

.1

Step-by-step explanation:

anything that's the furthest(farthest) from the tenths is a small number

the ratio of the number of adults to the number of students at the prom has to be 1:10. Last year there were 450 more students than adults at the prom. If the school is expecting the same attendance this year, how many adults have to attend the prom

Answers

Answer:

about 48 adults , because you have to divide the 477 by 10

Step-by-step explanation:

I got this question on my test and i chose this and i got it right.

I hope this helps!! :)

(b) Four of the interior angles of a 12 sided polygon are each x °. The other angles are 2xº each. Calculate the value of x.​

Answers

Answer:

Step-by-step explanation:

Sum of all the angles of 12 sided polygon= (n -2)*180

   = (12 - 2 )*180 = 10 * 180 = 1800

Four interior angle each of xº +  8 interior angles each of 2xº = 1800

4*x  + 8*2x = 1800

4x + 16x = 1800

20x = 1800

x = 1800/20

x = 90°

Answer:

x = 90

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 12 , then

sum = 180° × 10 = 1800

There are 12 interior angles

Given 4 are x, then 8 are 2x , so

4x + 8(2x) = 1800

4x + 16x = 1800

20x = 1800 ( divide both sides by 20 )

x = 90

Ms. Jacobs is a photographer. For each job she charges $135 for the first hour she works and $100 for each additional hour. Ms. Jacobs charged a total of $535 for a job on Friday. Which equation can be used to determine h, the number of additional hours she worked on this job? MI - A 135h + 100 = 535 B 135 + h + 100 = 535 SI - C 135 + 100h = 535 PSA - D 135h = 535 + 100 is​

Answers

Answer:

The answer is C, 135 + 100h = 535.

Step-by-step explanation:

H can't be multiplied by 135, since that's only for one hour.  That value never changes, so it can't be A.  It's not B because that implies that she starts out by charging $235 for the first hour, plus the # of additional hours, which doesn't make sense.  And it's not D because the total amount of $ that she receives must EQUAL 535, but there is another number on the same side with 535.  Therefore, the only answer that remains is C.  

P.S. She worked 4 additional hours.

A person picks 250 apples an hour and works for 5 hours a day. How many apples can be picked in 2 weeks, assuming apples are picked each day??

Answers

Woah picking apples seems like a fun job…very fun…anyway…
So this person picks 250 apples in 1 hour and works 5 hours a day. Do 250 times 5 because he will be picking apples for 5 hours a day. 250x5=1,250 apples. This person picks 1,250 apples a day. So the question asks how many apples can be picked in two weeks if this person picks apples everyday. We all know there are 7 days a week, so if it’s 2 weeks, then 7x2=14 days in 2 weeks. Now we take that 1,250 (number of apples this person picks a day) and times it by 14 (days this person will be picking apples). 1,250x14=17,500 apples. 17,500 apples can be picked in 2 weeks.

Answer:

17,500 Apples in 2 weeks

Step-by-step explanation:

250 apples*5 hours*14 days= 17,500 Apples in 2 weeks

please help! i will mark brainliest!

Answers

Answer:

(-4.5, 0)

Step-by-step explanation:

I don't even use midpoint formula for these types of problems, we can just count and see where they meet in the middle.

0 --- (-9)

(-1) --- (-8)

(-2) --- (-7)

(-3) --- (-6)

(-4) --- (-5)

(-4.5) --- (-4.5)

1. How much interest
will Hannah earn in 4 years if she
deposits $630 in a savings account at
6.5% simple interest?

Answers

Answer:

$163.8 more.

Step-by-step explanation:

Let's use the formula Principle × Rate × Time, or PRT to find our simple interest. Let's fill in the blanks. Our principle is $630. Our rate is 6.5% and our time is 4 years. Next, we multiply all this. $630 × 13/200 × 4. Our answer would be 163.8. I hoped this helped.

At the end of a snowstorm, Katherine had 18 inches of snow on her lawn. The temperature then increased and the snow began to melt at a constant rate of 2.5 inches per hour. Assuming no more snow was falling, how much snow would Katherine have on her lawn 4 hours after the snow began to melt? How much snow would Katherine have on her lawn after t hours of snow melting?

Answers

After 4 hours of snow melting, there would be 8 inches of snow with the rate of 2.5 inches per hour Katherine would have on her lawn and after t hours the snow would be = 18 - 2.5*t inches.

In this question, the amount of snow melted is required to calculate to know the amount of snow on the lawn, can be calculated by:

the melted amount = rate of melting × time

Given:

The total amount of snow = 18 inches

Rate of melting = 2.5 inches

Time = 4 hours

Solution:

The amount melted needs to be calculated first in order to find left snow, therefore, putting values in the formula mention above,

the melted amount = rate of melting × time

the melted amount = 2.5 × 4 inches

the melted amount = 10 inches

Then the final amount would have on the lawn =  starting amount−melted snow

=  18−10 inches

= 8 inches

Part b) Snow after t hours:

Starting amount=  18 inches

Melted snow=  inches per hour×t

= 2.5×t

= 2.5t

Final amount = starting amount−melted snow

= 18 -2.5t

Thus, the correct answer is - 8 inches and 18 -2.5t

Learn more:

https://brainly.com/question/19122325

Ajay is on the swim team. He improved his time on
the 50-yard freestyle from 32 seconds to 31 seconds.
What's the percent decrease in his time?

Answers

Answer:

5%

Step-by-step explanation

50/32= 1.56yard per second        ; 50/31= 1.61 yard per second

1.61-1.56= 0.05* 100= 5%

Point R is on line segment QS

. Given QR=3x−8, QS=3x, and RS=2x, determine the numerical length of RS .

Answers

Answer: 8

Step-by-step explanation:

QS = RS + QR

3x = 2x + 3x-8

3x = 5x - 8

8 = 2x

8/2 = x

4 = x

RS = 2x = 2(4) = 8

fill in the dimensions and angle measures . Are the dashed segments parallel ?

Answers

Answer:

To see whether or not two lines are parallel, we must compare their slopes. Two lines are parallel if and only if their slopes are equal. The line 2x – 3y = 4 is in standard form. In general, a line in the form Ax + By = C has a slope of –A/B; therefore, the slope of line q must be –2/–3 = 2/3.

Name the property of real numbers illustrated by the equation.

Answers

Answer:

Property

Step-by-step explanation:

Distributive Property

what 4 numbers under 10 equals the product 2016

Answers

Answer:

4, 7, 8 and 9.

(4)(7)(8)(9)

= 4 × 7 × 8 × 9

= 2016

Verify it on a calculator for your satisfaction ☺

Hope that helps...

4x7x8x9 there you go

Aimee deposited $250 into a savings account with the simple interest of 6% per year.

After 4 years, how much money, in total, will she have in her account?

Answers

Answer:

Step-by-step explanation:

Interest=principal*rate*time/100

Interest=240$

Amount= principal + interest

Amount=$490

Write the linear equation of the line that passes through the points (4,-5) and (-6,5)

Answers

Answer:

y = -x -1

Brainliest, please!

Step-by-step explanation:

(4, -5)(-6, 5)

y = mx + b

m = slope, b = y-intercept

m = 10/-10

m = -1

y = -1x + b

We can plug in (4, -5):

-5 = -1(4) + b

-5 = -4 + b

b = -1

y = -x - 1

what is a example of the reflexive property.​

Answers

Answer: 3 is equal to 3

Explaination: We all have learned that reflexive property of equality means that anything is equal to itself. So, this property tells us that anything is equal to itself.

Need awnsers please

Answers

Answer:

1_ 129 , 51

2_ b

3_ 40

Step-by-step explanation:

1_ we can represent the bigger angle with x and smaller one with y

and as given, y is smaller than x by 78

so y = x - 78 (1)

as x + y = 180

we put y as we did in (1)

x + x - 78 = 180

so 2x = 258

so x = 129

and y will be 51

2_ from the figure we find the two angles form one angle = 90 degree

3_ from the defenition of complementary angles

m(c) + m(d) = 90

7r + 5 + 8r + 10 = 90

15r + 15 = 90

r = 5

so m(c) will be equal 7*5 + 5 = 40

carlas rectangular picture frame is 10 inches wide and 12inches long, which picture frame is similar but not congruent to carlas picture frame

Answers

Answer:

12 inches wide 15 inches long

Step-by-step explanation:

Any length of sides that dont have the same side-side ratio with carlas rectangular picture frame (example: 10/12 [tex]\neq[/tex] 12/15)

The reduce feature on a copy machine is set
at 84%. The picture being copied is 4.5
inches wide. What will be the width of the
reduced picture?

5.35 in.
2.9 in.
3.78 in.
0.72 in.

Answers

Answer:

c) 3.78

Step-by-step explanation:

Which of the following is an irrational number? How do you know? Use key words and definitions to explain your answer choice.
1632
0.25
0.0300300030000…
0

Answers

Answer:

0.0300300030000...

Step-by-step explanation:

An irrational number has endless non-repeating digits to the right of the decimal point. They can be written as decimals, but not as fractions.

1632 can be written as 3264/2

0.25 can be written as 1/4

0 could be written as 0/0

but 0.0300300030000 cannot be written as a fraction, and it satisfies the condition of an irrational number having endless non-repeating digits to the right of the decimal point.

Perform the indicated operation.Perform the indicated operation.




-50

-95

-20

none of the above

PLEASE HELP ASAP!!!!

Answers

[tex]Hello[/tex] [tex]There![/tex]

Quite easy...

It's -20.

Hopefully, this helps you!!

P.S I love late points.

:>

[tex]AnimeVines[/tex]

RS is the segment bisector. If OQ = 32 and PO = 4x,
what does x equal?
4
8
36
128
pls help

Answers

Answer:

8

Step-by-step explanation:

Bisectors are lines that divide an angle into two equal parts. The value of x of OQ is equal to PO is 8

Angle bisectors

Bisectors are lines that divide an angle into two equal parts. If RS is the segment bisector and given the following parameters:

OQ = 32

PO = 4x,

This shows that OQ = PO that is:

32 = 4x

Swap

4x = 32
x = 8

Hence the value of x of OQ is equal to PO is 8

Learn more on bisectors here: https://brainly.com/question/11006922

Solve the x 2/3x +5 1/2 = -10

Answers

Answer:

x = 2/3x + 5 1/2 = -10 = x = -93/4

Step-by-step explanation:

please help asap show work and dont put links

Answers

Answer:

a. 41

b. -31

c. 25/3, no

Step-by-step explanation:

when it says find f(14) the number inside the parenthesis is x, so you just plug that number into the equation which in this case is 3x-1. for c it says find the input if the output is 24. so basically the output is f(x) or y and the input is x. so 3x-1 = 24.

Can anyone plz ans it correctly I will mark as brainliest plz ans it correctly​

Answers

1. ∠AGH

Alternate angle — ∠DHG

Corresponding angle — ∠CHF

Co-interior angle — ∠GHC

Vertically opposite angle — ∠EGB

2. ∠CHG

Alternate angle — ∠BGH

Corresponding angle — ∠AGE

Co-interior angle — ∠AGH

Vertically opposite angle — ∠FHD

3. ∠DHG

Alternate angle — ∠AGH

Corresponding angle — ∠BGE

Co-interior angle — ∠HGB

Vertically opposite angle — ∠CHF

4. ∠BGH

Alternate angle — ∠CHG

Corresponding angle — ∠DHF

Co-interior angle — ∠GHD

Vertically opposite angle — ∠AGE

An airplane heads in the direction of N25°E at 325 mph. A tailwind is blowing in the direction N40°W at 50 mph. What is the actual velocity of the plane?
A) 315.786 mph
B) 349.084 mph
C) 438.064 mph
D) 121860.018 mph​

Answers

In order to fully understand the actual velocity of the airplane bearing, we've carefully drawn out the sketch.

From the image below, by applying the cosine rule to calculate the actual velocity of the plane from the starting point, we have:

b² = a² + c² - 2ac Cos B

where;

a = 50 mph c = 325 mph∠B = 65° + 50° = 115°

b² = (50² + 325²) - (2 × 50 × 325 × Cos 115°)

b² = 2500 + 105625 - (32500 ×  (-0.4226))

b² = 108125 - (-13734.5)

b² = 121859.5

[tex]\mathbf{b =\sqrt{121859.5 }}[/tex]

b = 349.08 mph

Therefore, we can conclude that the actual velocity of the airplane from its starting point is 349.08 mph.

Learn more about bearing and distance here:

https://brainly.com/question/19017345?referrer=searchResults

John's cell phone company charges him a flat fee of $27.50 per month plus $.12 a
minute for every minute he is on the phone. If his bill was $66.62, how many minutes
was he on his phone?
326 minutes
35.5 minutes
O 348 minutes

Answers

answer: 326 minutes

explanation: 66.62 (bill) - 27.50 (monthly fee) = 39.12
39.12 is now the total of the charges for every minute he was on his phone. so we divide that number by the fee of .12 to find how many minutes he was on the phone, 326 minutes.

Factorise
Please with full method

Answers

[tex]\boxed{\sf (a-b)^3=a^3-3a^2b+3ab^2-b^3}[/tex]

[tex]\\ \sf\longmapsto 64a^3-(b-c)^3[/tex]

[tex]\\ \sf\longmapsto 64a^3-(b^3-3b^2c+3bc^2-c^3)[/tex]

[tex]\\ \sf\longmapsto 64a^3-b^3+3b^2c-3bc^2+c^3[/tex]

[tex]\\ \sf\longmapsto 64a^3-b^3+c^3+3b^2c-3bc^2[/tex]

Answer:

Step-by-step explanation:

[tex]Remember:\\\\\boxed{x^3-y^3=(x-y)(x^2+xy+y^2)}\\\\64a^3-(b-c)^3\\\\=(4a)^3-(b-c)^3\\\\=(4a-(b-c))(16a^2+4a(b-c)+(b-c)^2)\\\\=(4a-b+c)(16a^2+4ab-4ac+b^2-2bc+c^2)\\[/tex]

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